LOUISVILLE, Colo. (BRAIN) — Wheels Mfg. is offering shops free laminated wall charts of its derailleur hangers and bottom bracket offerings. The charts are free with any shop order that includes a wall chart between now and April 30.

The double-sided derailleur hanger chart shows every hanger Wheels currently produces, more the 240 models. Hangers are broken out by the number of fasteners that secure the hanger to the frame.